h1 {
    text-align: center;
    margin-bottom: 30px;
}

/* 下拉菜单样式 */
label {
    font-weight: bold;
    margin-right: 10px;
    font-size: 16px;
    color: #444;
}

select {
    padding: 12px 40px 12px 20px;
    font-size: 16px;
    border: 2px solid #007BFF;
    border-radius: 8px;
    background-color: #f8f9fa;
    background-image: url('data:image/svg+xml;charset=US-ASCII,<svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg"><path d="M6 9L12 15L18 9" stroke="%23007BFF" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/></svg>');
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 18px;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 320px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

select:hover {
    border-color: #0056b3;
    background-color: #e9ecef;
}

select:focus {
    outline: none;
    border-color: #0056b3;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}

/* 图表容器样式 */
.chart-container {
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    position: relative;
}

/* 图表操作按钮 */
.chart-icons {
    position: absolute;
    top: 10px;
    right: 10px;
    display: flex;
    z-index: 1000;
}

.chart-icons img {
    width: 20px;
    height: 20px;
    margin-left: 10px;
    cursor: pointer;
    transition: transform 0.2s;
}

.chart-icons img:hover {
    transform: scale(1.2);
}


/*!* 优化滚动条样式 *!*/
/*::-webkit-scrollbar {*/
/*    width: 6px;*/
/*    height: 6px;*/
/*}*/

/*::-webkit-scrollbar-thumb {*/
/*    background: rgba(0, 123, 255, 0.3);*/
/*    border-radius: 3px;*/
/*}*/